一、tableview的分页加载的代码对比
没有优化之前的代码如下
[strongSelf.tableView.mj_footer endRefreshing];
[strongSelf.articleArr addObjectsFromArray:feedList];
[strongSelf.tableView reloadData];
优化之后的代码
NSMutableArray *indexPaths = [NSMutableArray array];
[feedList enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:(strongSelf.articleArr.count + idx) inSection:0];
[indexPaths addObject:indexPath];
}];
[strongSelf.tableView.mj_footer endRefreshing];
[strongSelf.articleArr addObjectsFromArray:feedList];
[strongSelf.tableView beginUpdates];
[strongSelf.tableView insertRowsAtIndexPaths:indexPaths withRowAnimation:UITableViewRowAnimationNone];
[strongSelf.tableView endUpdates];
二、collectonview的分页加载的代码对比
没有优化之前的代码如下:
[strongSelf.feedList addObjectsFromArray:feedList];
if (feedList.count < kPageSize) {
[strongSelf.collectionView.mj_footer endRefreshingWithNoMoreData];
}else{
[strongSelf.collectionView.mj_footer resetNoMoreData];
}
[strongSelf.collectionView reloadData];
优化之后的代码
NSMutableArray *indexPaths = [NSMutableArray array];
[feedList enumerateObjectsUsingBlock:^(id _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
[indexPaths addObject:[NSIndexPath indexPathForItem:(strongSelf.feedList.count + idx) inSection:0]];
}];
[strongSelf.feedList addObjectsFromArray:feedList];
if (feedList.count < kPageSize) {
[strongSelf.collectionView.mj_footer endRefreshingWithNoMoreData];
}else{
[strongSelf.collectionView.mj_footer resetNoMoreData];
}
[strongSelf.collectionView insertItemsAtIndexPaths:indexPaths];
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